CK67 / CK75 Hardened and Tempered Steel Strip — Reliable Material for Rolling Shutter Springs
1. Overview CK67 and CK75 are high carbon spring steel grades commonly used in hardened and tempered steel strips.These steels offer an outstanding combination of hardness, toughness, and spring properties, making them the preferred materials for rolling shutter springs, flat springs, saw blades, and hand tools. Jiaxiao MTC manufactures CK67 / CK75 strips under strict […]